-15+2a=-6(5+3a)+5a

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Solution for -15+2a=-6(5+3a)+5a equation: 



-15+2a=-6(5+3a)+5a

We move all terms to the left:

-15+2a-(-6(5+3a)+5a)=0

We add all the numbers together, and all the variables

2a-(-6(3a+5)+5a)-15=0



We calculate terms in parentheses: -(-6(3a+5)+5a), so:

-6(3a+5)+5a

We add all the numbers together, and all the variables

5a-6(3a+5)

We multiply parentheses

5a-18a-30

We add all the numbers together, and all the variables

-13a-30

Back to the equation:

-(-13a-30)



We get rid of parentheses

2a+13a+30-15=0

We add all the numbers together, and all the variables

15a+15=0

We move all terms containing a to the left, all other terms to the right

15a=-15

a=-15/15

a=-1

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